Nassophorea:
Microthoracida: Microthoracidae
Microthorax simulans
Kahl, 1926
Genus: Cytostome in rear 1/3 of body (Illustrated Guide, 1985).
Irregular, almost triangular in shape; anterior pointed; posterior rounded;
distinctly flattened with a delicate keeled armour; somatic ciliation reduced;
ventrally 3 longitudinal cilary rows; cytostome in a depression at posterior ventral region;
tooth-like projection on the left side
(Carey, 1992).
Species: 30-35 μm long (Kahl, 1931).
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Similar Genus ->> Drepanomonas;
Kreyella
Microthorax simulans,
cell body 31 μm long, 16 μm wide,
x 640, Nasu-shiobara city (formerly Kuroiso city), Tochigi Pref., Japan, September 2002 by Y. Tsukii
50 μm
100 μm
150 μm; x 400
Mirothorax simulans,
cell body μm long, μm wide,
x 640, Nasu-shiobara city (formerly Kuroiso city), Tochigi Pref., Japan, September 2002 by Y. Tsukii
50 μm
100 μm
150 μm; x 400
* M. simulans Kahl, 1926:
30-35 μm long (Kudo, 1966).
Body laterally compressed; 30-35 μm long;
several ridges on left side; 3 rows of cilia & cytostome on right side;
cytostome post-central; with curved ectoplasmic lip bearing a small undulating membrane on the inner side;
two contractile vacuoles (How to know the protozoa, 1979).
M. sulcatus Englemann, 1862: 30-40 μm long;
a single macronucleus; two contractile vacuoles (Carey, 1992).
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